1524421252 has 12 divisors (see below), whose sum is σ = 2707554640. Its totient is φ = 750834216.

The previous prime is 1524421237. The next prime is 1524421271. The reversal of 1524421252 is 2521244251.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1524421252.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2843802 + ... + 2844337.

Almost surely, 2^1524421252 is an apocalyptic number.

It is an amenable number.

1524421252 is a deficient number, since it is larger than the sum of its proper divisors (1183133388).

1524421252 is a wasteful number, since it uses less digits than its factorization.

1524421252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5688210 (or 5688208 counting only the distinct ones).

The product of its digits is 6400, while the sum is 28.

The square root of 1524421252 is about 39043.8375675343. The cubic root of 1524421252 is about 1150.8931315131.

The spelling of 1524421252 in words is "one billion, five hundred twenty-four million, four hundred twenty-one thousand, two hundred fifty-two".